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Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1

Portability
77
Imaging
52
Features
31
Overall
43
Ricoh GXR A12 50mm F2.5 Macro front
 
Sigma SD1 front
Portability
77
Imaging
55
Features
43
Overall
50

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Key Specs

Ricoh GXR A12 50mm F2.5 Macro
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200
  • 1280 x 720 video
  • 50mm (F2.5) lens
  • 453g - 114 x 70 x 77mm
  • Introduced November 2009
Sigma SD1
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 0 - 0
  • No Video
  • Sigma SA Mount
  • n/ag - 146 x 113 x 80mm
  • Announced September 2010
  • Replacement is Sigma SD1 Merrill
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Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Overview

Here is a in depth review of the Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1, former being a Advanced Mirrorless while the other is a Advanced DSLR by brands Ricoh and Sigma. The resolution of the GXR A12 50mm F2.5 Macro (12MP) and the SD1 (15MP) is fairly close and they feature the exact same sensor sizing (APS-C).

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The GXR A12 50mm F2.5 Macro was introduced 10 months earlier than the SD1 and they are both of a similar age. Both the cameras come with different body type with the Ricoh GXR A12 50mm F2.5 Macro being a Rangefinder-style mirrorless camera and the Sigma SD1 being a Mid-size SLR camera.

Before we go through a detailed comparison, below is a simple introduction of how the GXR A12 50mm F2.5 Macro scores against the SD1 with regard to portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GXR A12 50mm F2.5 Macro over the Sigma SD1

 GXR A12 50mm F2.5 Macro SD1 
Display resolution920k460kCrisper display (+460k dot)

Reasons to pick Sigma SD1 over the Ricoh GXR A12 50mm F2.5 Macro

 SD1 GXR A12 50mm F2.5 Macro 
AnnouncedSeptember 2010November 2009Fresher by 10 months

Common features in the Ricoh GXR A12 50mm F2.5 Macro and Sigma SD1

 GXR A12 50mm F2.5 Macro SD1 
Manual focus Very accurate focus
Display typeFixed Fixed Fixed display
Display dimension3"3"Identical display measurement
Selfie screen Missing selfie screen
Touch friendly display Neither has Touch friendly display

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Physical Comparison

When you are planning to carry your camera frequently, you have to take into account its weight and measurements. The Ricoh GXR A12 50mm F2.5 Macro has physical dimensions of 114mm x 70mm x 77mm (4.5" x 2.8" x 3.0") having a weight of 453 grams (1.00 lbs) while the Sigma SD1 has proportions of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") having a weight of n/a grams (0.00 lbs).

Check out the Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will change depending on the lens you have attached at the time. Below is the front view sizing comparison of the GXR A12 50mm F2.5 Macro and the SD1.

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 size comparison

Taking into account size and weight, the portability grade of the GXR A12 50mm F2.5 Macro and SD1 is 77 and 77 respectively.

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 top view buttons comparison

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Sensor Comparison

Oftentimes, it can be difficult to see the gap in sensor sizing just by viewing specs. The graphic here may give you a better sense of the sensor dimensions in the GXR A12 50mm F2.5 Macro and SD1.

All in all, each of these cameras have got the exact same sensor measurements but not the same MP. You can anticipate the Sigma SD1 to result in more detail using its extra 3MP. Greater resolution can also let you crop pics much more aggressively. The older GXR A12 50mm F2.5 Macro will be behind with regard to sensor tech.

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 sensor size comparison

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Screen and ViewFinder

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GXR A12 50mm F2.5 Macro Portrait photography information
Sigma SD1 Portrait photography information
55
focusing manually
nice sensor size (APS-C)
supports RAW files
does not have liveview
MP count low (12MP)
65
you can focus manually
decent MP (15MP)
nice sensor size (APS-C)
saves RAW formats
no liveview feature
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Street Comparison

Street photography with Ricoh GXR A12 50mm F2.5 Macro
Street photography with Sigma SD1
62
nice sensor size (APS-C)
supports RAW files
fixed screen
no image stabilization
62
nice sensor size (APS-C)
saves RAW formats
environment proofing
no articulating screen
no image stabilization
low max ISO (0)
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Sports Comparison

Ricoh GXR A12 50mm F2.5 Macro as a Sports photography camera
Sigma SD1 as a Sports photography camera
32
nice sensor size (APS-C)
focal length is fixed (50mm)
does not have liveview
very slow continuous shooting (3.0 frames per second)
no image stabilization
MP count low (12 megapixels)
not so great battery pack (320 CIPA)
doesn't have phase detect AF
56
decent MP (15MP)
nice sensor size (APS-C)
environment proofing
sensor has phase detect auto focus
no liveview feature
continuous shooting slow (5.0 frames per second)
no image stabilization
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Travel Comparison

Ricoh GXR A12 50mm F2.5 Macro as a Travel photography camera
Sigma SD1 as a Travel photography camera
49
has built in flash
not so great battery pack (320 shots)
MP count low (12MP)
display isn't selfie friendly
slow max aperture (f2.5)
65
environment proofing
decent MP (15MP)
has built in flash
missing Timelapse function
doesn't contain selfie friendly screen
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Landscape Comparison

Ricoh GXR A12 50mm F2.5 Macro Landscape photography details
Sigma SD1 Landscape photography details
46
focusing manually
screen is a good size (3 inch)
nice sensor size (APS-C)
supports RAW files
lens is fixed (fixed lens mount)
focal length is fixed (50mm)
slow max aperture (f2.5)
does not have liveview
no image stabilization
MP count low (12MP)
not so great battery pack (320 CIPA)
61
you can focus manually
swap lenses (Sigma SA mount)
nice screen size (3")
decent MP (15MP)
nice sensor size (APS-C)
saves RAW formats
environment proofing
no liveview feature
no image stabilization
low max ISO (0)
missing Timelapse function
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Vlogging Comparison

Ricoh GXR A12 50mm F2.5 Macro as a Vlogging camera
Sigma SD1 as a Vlogging camera
20
slow max aperture (f2.5)
display isn't selfie friendly
no image stabilization
low video resolution (1280 x 720 pxls)
lack of microphone support
9
lack of video recording
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Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD1 Specifications

Detailed spec comparison table for Ricoh GXR A12 50mm F2.5 Macro and Sigma SD1
 Ricoh GXR A12 50mm F2.5 MacroSigma SD1
General Information
Company Ricoh Sigma
Model type Ricoh GXR A12 50mm F2.5 Macro Sigma SD1
Type Advanced Mirrorless Advanced DSLR
Introduced 2009-11-10 2010-09-21
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Chip GR engine III Dual True II
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.6 x 15.7mm 24 x 16mm
Sensor area 370.5mm² 384.0mm²
Sensor resolution 12 megapixel 15 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 -
Highest resolution 4288 x 2848 4800 x 3200
Highest native ISO 3200 -
Lowest native ISO 200 -
RAW photos
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Total focus points - 11
Cross type focus points - 2
Lens
Lens support fixed lens Sigma SA
Lens zoom range 50mm (1x) -
Maximal aperture f/2.5 -
Macro focusing range 1cm -
Amount of lenses - 76
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3" 3"
Screen resolution 920 thousand dot 460 thousand dot
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 96%
Viewfinder magnification - 0.64x
Features
Slowest shutter speed 180 seconds 15 seconds
Maximum shutter speed 1/3200 seconds 1/2000 seconds
Continuous shooting speed 3.0fps 5.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash distance 3.00 m -
Flash modes Auto, On, Off, Red-Eye, Slow Sync, Manual -
Hot shoe
AE bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 480 (24 fps), 320 x 240 (24 fps) -
Highest video resolution 1280x720 None
Video data format Motion JPEG -
Microphone input
Headphone input
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 453 grams (1.00 pounds) -
Dimensions 114 x 70 x 77mm (4.5" x 2.8" x 3.0") 146 x 113 x 80mm (5.7" x 4.4" x 3.1")
DXO scores
DXO All around rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life 320 images -
Battery format Battery Pack -
Self timer Yes (2 or 10 sec, 10 sec (3 images) ) Yes
Time lapse shooting
Type of storage SD/SDHC, Internal Compact Flash (Type I, UDMA compatible)
Storage slots 1 1
Launch price $566 $2,339